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Finding the Fourth Proportional to 501,780.48, 692,431.63 and 297,840.30

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Solution

The fourth proportional to 501,780.48, 692,431.63 and 297,840.30 is: 411,004.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,780.48 : 692,431.63 = 297,840.30 : x
  2. Step 2: Convert to fraction form
    501,780.48/692,431.63 = 297,840.30/x
  3. Step 3: Cross multiply
    501,780.48x = 692,431.63 × 297,840.30
  4. Step 4: Simplify right side
    501,780.48x = 206,234,044,408.69
  5. Step 5: Solve for x
    x = 206,234,044,408.69/501,780.48
  6. Step 6: Final answer
    x = 411,004.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.